Question

Simplify (x + 2y) (1 + 3x + 4y) - 6y (x + y)​

Answer 1

Answer:

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Step-by-step explanation:

x(1 + 3x + 4y) + 2y(1 + 3x + 4y) - 6y(x + y)

x + 3x² + 4xy + 2y + 6xy + 8y² - 6xy - 6y²

x + 3x² + 4xy + 2y + 2y²

Answer 2

Answer:

(x + 2y) (1 + 3x + 4y) - 6y(x+y)

x(1 + 3x + 4y)+2y(1 + 3x + 4y)-6y(x+y)

x+3x²+4xy+2y+3xy+8y²-6xy-6y²

x+3x²+xy+2y+2y²

=3x²+2y²+2y+x+xy

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